Sustainable Energy Technologies and Assessments最新文献

{"title":"Optimal sizing of solar photovoltaic water pumping systems by synergizing irrigation patterns and static heads: A comprehensive study in the Indian context","authors":"Maneesh Kumar,&nbsp;Pratham Arora,&nbsp;Nitish Srivastava,&nbsp;Juhi Padma,&nbsp;Rhythm Singh,&nbsp;Amit C. Bhosale","doi":"10.1016/j.seta.2025.104341","DOIUrl":"10.1016/j.seta.2025.104341","url":null,"abstract":"<div><div>This study presents a comprehensive analysis for sizing a solar photovoltaic-water pumping system (SPVWPS) for irrigation purposes. In India, these pumps are widely used for groundwater extraction. However, most of the irrigation sites in India are typically smaller than one hectare, and the available pump sizes often exceed the actual irrigation requirements. This discrepancy makes it challenging to utilize SPVWPS efficiently. The study introduces a new sizing indicator called the Irrigation Load Factor (ILF), similar to the load factor used in electrical systems. This indicator, along with the static head, significantly influences SPVWPS sizing and offers key insights for selecting suitable irrigation land. This approach is applied across fourteen agro-climatic zones in India. The design and simulation of SPVWPSs are done on PVsyst® 7.4.5 software while keeping missing water (&lt; 5 %) and performance ratio (14.1 %-52.5 %) under different scenarios. The study explores a trade-off between selecting irrigation for larger community areas (more than 10 ha) and smaller isolated areas (1 ha or less). It finds that low ILF zones with low static heads are unsuitable for community irrigation due to larger land requirements, while high ILF zones with medium to high heads are more efficient for SPVWPS installation.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104341"},"PeriodicalIF":7.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A deep learning framework for photovoltaic power forecasting in multiple interconnected countries","authors":"Christos N. Dimitriadis,&nbsp;Nikolaos Passalis,&nbsp;Michael C. Georgiadis","doi":"10.1016/j.seta.2025.104330","DOIUrl":"10.1016/j.seta.2025.104330","url":null,"abstract":"<div><div>Accurate photovoltaic (PV) power forecasting is essential for enabling utilities, grid operators, and market participants to anticipate solar generation patterns and adjust operational strategies. Recently, Deep Learning (DL) has emerged as a promising approach for improving PV forecasts. However, training DL models typically require large datasets, which are often limited in PV power forecasting, restricting their full potential. Incorporating additional data from multiple heterogeneous sources, such as different countries, can help address this limitation but – at the same time − introduces challenges related to distribution shifts that can negatively impact forecasting accuracy. The rapid expansion of PV capacity further complicates forecasting, as generation patterns shift with new installations. Existing approaches often face challenges in effectively utilizing data from multiple sources. The main novelty of this paper lies in proposing a DL-based PV forecasting framework that integrates both foundational and country-specific training. This approach enables the framework to leverage data from multiple interconnected countries, improving generalization and enhancing forecasting accuracy. Additionally, we introduce an adaptation mechanism that dynamically recalibrates the forecasting model in response to changes in PV capacity, without the need for retraining, allowing our framework to seamlessly handle such variations. The proposed framework, evaluated on data from three interconnected countries (Greece, Bulgaria, and Romania), demonstrates significant improvements in accuracy by exploiting cross-country data and adapting to evolving conditions. Using data from these three interconnected countries is particularly important since each country’s domestic PV production can directly affect the clearing prices and the energy mix of the neighboring countries. This work highlights a critical yet underexplored research direction, demonstrating the potential for significantly more accurate DL-based PV forecasting by effectively utilizing big data, in line with recent advances in DL across various fields.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104330"},"PeriodicalIF":7.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental regulation, Manufacturing and Producer Services Industrial Co-agglomeration, and Energy Efficiency − Evidence from 282 Cities in China","authors":"Qi Wang,&nbsp;Chengshi Tian","doi":"10.1016/j.seta.2025.104312","DOIUrl":"10.1016/j.seta.2025.104312","url":null,"abstract":"<div><div>As a nascent form of spatial agglomeration behavior, industrial co-agglomeration presents a novel opportunity for the augmentation of energy efficiency. Grounded in the instances of 282 cities spanning from 2012 to 2021, the study finds a “U” − shaped curve relationship exists between the industrial co-agglomeration and energy efficiency by spatial Durbin model, which broadens the perspective on the key factors promoting energy efficiency from a theoretical standpoint. Secondly, we examined the heterogeneous effects of industrial co-agglomeration on energy efficiency from four distinct dimensions in light of China’s distinctive geographical and industrial distribution patterns. This paper undertakes a more in-depth exploration of the effect that industrial co-agglomeration and environmental regulation exert on energy efficiency, and the outcomes suggest that the integration of industrial co-agglomeration and formal environmental regulation can further enhance energy efficiency, while the combination of industrial co-agglomeration and informal environmental regulation inhibits the positive effect on energy efficiency, offering a theoretical foundation for Chinese environmental policymakers to formulate distinct environmental regulatory strategies. This paper reveals a “1 + 1 &gt; 2” energy-saving and efficiency mechanism. It deepens understanding of environmental regulations, and provides insights for resolving the “economic growth − energy consumption” dilemma, contributing to the global sustainable development agenda.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104312"},"PeriodicalIF":7.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Grade-matched air humidification to reduce the required heating-source temperature and capacity","authors":"Chenjiyu Liang ,&nbsp;Chupeng Yang ,&nbsp;Huan Wang ,&nbsp;Xianting Li","doi":"10.1016/j.seta.2025.104340","DOIUrl":"10.1016/j.seta.2025.104340","url":null,"abstract":"<div><div>Humidification is vital for human health in residential buildings and critical industrial processes, yet it receives less research attention than cooling and dehumidification. Traditional systems rely on high-grade steam for humidification, consuming substantial thermal energy. While warm water or solution spraying enables enthalpy-increasing humidification with lower-grade heat, grade wastage persists. This study explores optimal heating source temperature grade and capacity for humidification loads, and improves the previously proposed grade-matched method for air treatment process design, then applies the method to design a humidification process for an industrial building case. By integrating low-grade heat recovery and multi-stage heat pumps, the system reduces energy use significantly compared to traditional isothermal and temperature and humidity independent control (THIC) systems. Using water heated to 6.6 °C and 16.0 °C by two heat pumps, fresh air is humidified to 10 g/kg (14.4 °C dew point), lowering heating-source grade requirements. This system reduces the heating-source temperature grade and enables energy recovery between the latent and sensible heat subsystems, thus achieving 28.6 % lower electricity consumption than the THIC system. By eliminating the need for high-grade steam, the system reduces electricity usage by 66.0 % compared to traditional isothermal humidification. This approach supports energy efficiency and global emission-reduction goals.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104340"},"PeriodicalIF":7.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimized current and voltage matching in high-efficiency bifacial III − V/silicon multijunction solar cells with enhanced spectral albedo","authors":"Rafi Ur Rahman ,&nbsp;Hasnain Yousuf ,&nbsp;Muhammad Quddamah Khokhar ,&nbsp;Alamgeer ,&nbsp;Maha Nur Aida ,&nbsp;Jaljalalul Abedin Jony ,&nbsp;Mengmeng Chu ,&nbsp;Alwuheeshi Shurouq Abdulqadir Mohammed ,&nbsp;Sangheon Park ,&nbsp;Junsin Yi","doi":"10.1016/j.seta.2025.104332","DOIUrl":"10.1016/j.seta.2025.104332","url":null,"abstract":"<div><div>This study presents a comprehensive investigation into the design, optimization, and performance of a mechanically stacked III-V/TOPCon tandem solar cell, primarily focusing on achieving voltage and current matching under varying illumination conditions. The proposed tandem configuration comprises a III-V triple-junction top cell (1 cm × 1 cm), exhibiting a V_oc of 2.70 V, J_sc of 13.95 mA/cm², FF of 84.39 %, and a PCE of 31.79 % under standard 1-sun illumination. The bottom layer integrates four series-connected TOPCon cells (1.5 cm × 1.5 cm each), achieving a combined V_oc of 2.70 V, J_sc of 14.02 mA/cm², FF of 87.08 %, and an efficiency of 32.96 %. The tandem module was fabricated using a mechanical stacking approach, where an III-V triple-junction top cell was physically aligned over series-connected TOPCon bottom cells without direct material bonding. Electrical performance was optimized through voltage and current matching, and spectral response was enhanced by rear-side albedo illumination ensuring efficient charge collection and energy conversion. Under 0.4-sun rear illumination, the tandem module achieved a J_sc of 16.00 mA/cm², V_oc of 2.70 V, FF of 84.63 %, and a peak efficiency of 36.56 %, representing the best configuration in this study. These findings underscore the potential of mechanically stacked tandem modules for next-generation photovoltaic technologies, offering advantages in scalability, spectral optimization, and electrical performance for high-efficiency solar energy applications.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104332"},"PeriodicalIF":7.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time-frequency characteristics and mechanisms of pressure pulsations in a pump turbine during the turbine start-up transients","authors":"Xiaolong Fu ,&nbsp;Deyou Li ,&nbsp;Jialiang Yang ,&nbsp;Hongjie Wang ,&nbsp;Zhenggui Li ,&nbsp;Xianzhu Wei","doi":"10.1016/j.seta.2025.104337","DOIUrl":"10.1016/j.seta.2025.104337","url":null,"abstract":"<div><div>During turbine start-up (TSU), various complex flow phenomena inside the pump-turbine affect the unit stability. The stability of TSU is crucial for successful grid connection of the unit. In this study, a governor equation was introduced, and a one- and three-dimensional coupled computational method was employed to simulate the dynamic variations in the guide vane (GV) opening during TSU. This method achieved a high-precision simulation of the TSU process, eliminating the use of oversimplified linear GV variations as a substitute for dynamic GV opening variations. Furthermore, the short-time Fourier transform method was used to conduct a time–frequency analysis of the pressure pulsations (PPs) during TSU. This study identified a novel PP component with the same waveform as that of the GV opening and flowrate variation curves. This PP component was induced by a fluid whose direction was altered by the blade leading-edge collision. Its frequencies are related to the rotational speed, manifesting as high and low frequencies during low-speed and high-speed TSU processes, respectively. These findings provide valuable references for the selection of governor parameters for the TSU process.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104337"},"PeriodicalIF":7.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Economic and emission reduction Co-benefits of integrating PV systems into EHT battery swap stations in China","authors":"Frank Yifan Wang ,&nbsp;Xiusheng Zhao ,&nbsp;Zechun Hu ,&nbsp;Zhiwei Huo","doi":"10.1016/j.seta.2025.104336","DOIUrl":"10.1016/j.seta.2025.104336","url":null,"abstract":"<div><div>Battery swapping is a promising solution to range anxiety for electric heavy-duty trucks, yet its large-scale adoption is hindered by economic viability concerns regarding battery swap stations. While previous studies have highlighted the benefits of optimized configuration, deployment, and charge scheduling, integrating renewable energy—particularly photovoltaic (PV) systems—presents an untapped opportunity for cleaner and more cost-effective battery swap operations. The large batteries of electric trucks offer a unique opportunity for enhanced energy storage and utilization of solar power, contributing to a more sustainable and healthy transportation infrastructure. This study investigates integrating PV systems into electric truck battery swap stations, with a focus on the solar conditions and electricity pricing patterns in China, aiming to advance the development of clean and healthy transportation systems. We employ the Battery Electric Vehicle – Station Configuration &amp; Energy System Optimization (BEV-SCESO) model, utilizing a PSO-GA optimization algorithm to determine the optimal configuration, charge scheduling parameters, and PV system capacities. Economic performance is assessed using a cost-per-kilowatt-hour metric, emphasizing the advantages of PV integration. For a comprehensive analysis, China is divided into six regions based on similar radiation and time-of-use pricing profiles. Results from various demand scenarios reveal significant economic and environmental benefits from photovoltaic integration. Specifically, daytime scenarios show a 14.7% increase in economic performance after PV systems are added, with photovoltaic systems generating 44.8% of station power. The results show that renewable integration in transport infrastructure can reduce environmental impact while improving economic viability for EHTs.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104336"},"PeriodicalIF":7.1,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable drying technologies for forage: A comprehensive review of research progress, strategies, opportunities, and future developments","authors":"Jun Zhang,&nbsp;Chen Cai,&nbsp;Cuiqiang Yan,&nbsp;Guanghui Wang","doi":"10.1016/j.seta.2025.104324","DOIUrl":"10.1016/j.seta.2025.104324","url":null,"abstract":"<div><div>Sustainable forage drying technology is crucial for maintaining nutritional quality, reducing post-harvest losses, and mitigating energy-environment trade-offs. This review systematically analyzes advancements in drying principles, technologies, and optimization strategies, including hybrid systems integrating renewable energy, data-driven process control, and pre-drying treatments, aiming to enhance efficiency and nutrient retention. We evaluate the efficacy, limitations, and applicability of various technologies and highlight innovative approaches such as solar-thermal hybrid systems, artificial intelligence-driven process control, and pre-drying interventions to improve drying uniformity and nutrient preservation. Additionally, challenges like high energy consumption, uneven drying, nutrient degradation, and economic barriers are assessed, with proposed solutions encompassing solar hybridization, adaptive sensor networks, and waste heat recovery. Emerging strategies emphasize interdisciplinary collaboration, merging advanced materials science, automation, and life cycle analysis to foster scalable and eco-friendly drying solutions. This review aims to provide strategic guidance for the future development of forage drying technologies, thereby promoting sustainable livestock farming and green innovation.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104324"},"PeriodicalIF":7.1,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal and enviro-economic analysis of solar stills: Influence of fin geometry, size, and water depth","authors":"Vipin Shrivastava ,&nbsp;Pushpendra Singh ,&nbsp;Vikas Kumar Thakur ,&nbsp;Chandra Shekhar Verma ,&nbsp;Anil Singh Yadav","doi":"10.1016/j.seta.2025.104335","DOIUrl":"10.1016/j.seta.2025.104335","url":null,"abstract":"<div><div>Solar distillation is a promising technology for producing fresh water in remote and arid regions, leveraging renewable solar energy to drive evaporation and condensation processes. However, conventional solar stills often suffer from low efficiency due to limited heat transfer. This study investigates the enhancement of solar still performance through the integration of circular and triangular fins on the absorber plate, a novel approach aimed at maximizing heat absorption and improving evaporation rates. Experimental tests were conducted under the climatic conditions of Bhopal, India, to evaluate the effects of fin geometry on water productivity. The experiment was performed at three different water depths (15, 30 and 45 mm). The results demonstrate that the circular fins gives maximum yield of 1.4 L/day, while triangular fins gives 0.95 L/day. The maximum evaporative heat transfer coefficient was found 20.8 W/m²K at water depth of 15 mm in case of circular fin. The energy payback time (EPBT) was 1.29 years for circular fins and 1.99 years for triangular fins. The study provides a comparative analysis of fin performance, offering new insights into optimizing heat transfer mechanisms for more efficient solar distillation systems.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104335"},"PeriodicalIF":7.1,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143870553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fractionation of corncob powder via an amine-based ternary deep eutectic solvent pretreatment for biomass valorization","authors":"Jinfan Wang ,&nbsp;Yongchang Xiao ,&nbsp;Baoxian Wang ,&nbsp;Saiying Li ,&nbsp;Zhiwei Wang ,&nbsp;Lizi Li ,&nbsp;Weiqi Wei","doi":"10.1016/j.seta.2025.104334","DOIUrl":"10.1016/j.seta.2025.104334","url":null,"abstract":"<div><div>Developing an efficient and feasible pretreatment is vital for biomass refining. Herein, three kinds of deep eutectic solvents (DESs) were synthesized and evaluated for corncob powder (CCP) pretreatment. Results indicated that lignin removal and feedstock surface disruption were key factors influencing pretreated solids enzymatic digestion. Maximum glucose and xylose yields of this work were 86.4 % and 73.6 %, respectively, which obtained after choline chloride-urea-ethanolamine (ChCl-U-EOA) = 1:1.4:0.6 pretreatment. The characterizations of various recovered lignin revealed that the ester bonds on lignin side chain were broken and corresponding amides were generated, the lignin molecular weight recovered from ChCl-U-EOA was much smaller compared with other two DESs system, and more tricin and methoxyl groups were retained after pretreatment, thus the recovered lignin has better anti-oxidation and anti-ultraviolet potential. The developed ternary DESs pretreatment could not only effectively separate and convert the hemicellulose and cellulose in CCP into xylose and glucose, respectively, the lignin recovered from pretreated liquid also displayed a good potential application in lignin-based sunscreen preparation, which provided a good reference for biomass integrated valorization.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"77 ","pages":"Article 104334"},"PeriodicalIF":7.1,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}